Date of Award

Fall 2009

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Chemistry & Biochemistry

Program/Concentration

Chemistry

Committee Director

Balasubramanian Ramjee

Committee Member

Patrick hatcher

Committee Member

Paula Mazzer

Committee Member

Jennifer Poutsma

Call Number for Print

Special Collections LD4331.C45 K35 2009

Abstract

Synthesis of morphologically distinct polymeric nanostructures is vital for their wide ranging applications from nanomedicine to material science. Among various polymeric nanostructures, nanocapsules in particular have attracted a lot of attention as nanoreactors and drug delivery vehicles in nanomedicine. Often, synthesis of nanocapsules is achieved by template-based approaches. A direct, template-free method for the fabrication of nanocapsules and a variety of other morphologically distinct polymeric architectures was developed. The photopolymerization of a resorcinarene thiol-ene surfactant in various solvents lead to the formation of nanocapsules, nanoparticles, fibers, distorted honeycomb-like lattices, and sheets. The progress of the polymerization reaction and the morphology of the resulting photopolymers were characterized by a battery of analytical techniques, including IR, NMR, TEM, SEM, EDS and DLS. Further, the influence of polymerization duration, monomer concentration, and oxygen in the formation of nanocapsules was evaluated. A photopolymerization-based one-pot synthesis and surface-functionalization method was developed by exploiting the residual thiol and ene functional groups present in the nanocapsules. To understand the importance of structural elements in the resorcinarene thiol-ene surfactant, a number of photopolymerization reactions involving various resorcinarene-ene surfactant and multithiols were also carried out.

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DOI

10.25777/a5aq-kh51

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